#!/usr/bin/env python # coding: utf-8 # /*########################################################################## # # Copyright (c) 2016-2019 European Synchrotron Radiation Facility # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. # # ###########################################################################*/ """ Example of drop zone supporting application/x-silx-uri """ from __future__ import absolute_import __authors__ = ["V. Valls"] __license__ = "MIT" __date__ = "25/01/2019" import logging import silx.io from silx.gui import qt from silx.gui.plot.PlotWidget import PlotWidget _logger = logging.getLogger(__name__) logging.basicConfig() class DropPlotWidget(PlotWidget): def __init__(self, parent=None, backend=None): PlotWidget.__init__(self, parent=parent, backend=backend) self.setAcceptDrops(True) def dragEnterEvent(self, event): if event.mimeData().hasFormat("application/x-silx-uri"): event.acceptProposedAction() def dropEvent(self, event): byteString = event.mimeData().data("application/x-silx-uri") silxUrl = byteString.data().decode("utf-8") with silx.io.open(silxUrl) as h5: if silx.io.is_dataset(h5): dataset = h5[...] else: _logger.error("Unsupported URI") dataset = None if dataset is not None: if dataset.ndim == 1: self.clear() self.addCurve(y=dataset, x=range(dataset.size)) event.acceptProposedAction() elif dataset.ndim == 2: self.clear() self.addImage(data=dataset) event.acceptProposedAction() else: _logger.error("Unsupported dataset") class DropLabel(qt.QLabel): def __init__(self, parent=None, backend=None): qt.QLabel.__init__(self) self.setAcceptDrops(True) self.setText("Drop something here") def dragEnterEvent(self, event): if event.mimeData().hasFormat("application/x-silx-uri"): event.acceptProposedAction() def dropEvent(self, event): byteString = event.mimeData().data("application/x-silx-uri") silxUrl = byteString.data().decode("utf-8") url = silx.io.url.DataUrl(silxUrl) self.setText(url.path()) toolTipTemplate = ("" ) toolTip = toolTipTemplate.format( file_path=url.file_path(), data_path=url.data_path(), data_slice=url.data_slice(), scheme=url.scheme()) self.setToolTip(toolTip) event.acceptProposedAction() class DropExample(qt.QMainWindow): def __init__(self, parent=None): super(DropExample, self).__init__(parent) centralWidget = qt.QWidget(self) layout = qt.QVBoxLayout() centralWidget.setLayout(layout) layout.addWidget(DropPlotWidget(parent=self)) layout.addWidget(DropLabel(parent=self)) self.setCentralWidget(centralWidget) def main(): app = qt.QApplication([]) example = DropExample() example.show() app.exec_() if __name__ == "__main__": main()